<template>
  <div>
    <table border="1" width="700" style="border-collapse: collapse">
      <caption>
        购物车
      </caption>
      <thead>
        <tr>
          <th><input type="checkbox" v-model="isAll" /> <span>全选</span></th>
          <th>名称</th>
          <th>价格</th>
          <th>数量</th>
          <th>总价</th>
          <th>操作</th>
        </tr>
      </thead>
      <tbody>
        <good-info
          v-for="(good, index) in goodList"
          :key="index"
          :name="good.name"
          :price="good.price"
          :num="good.num"
          :ind="index"
          :checked="good.checked"
          @minus="minus"
          @add="add"
          @del="del"
          @chec="chec"
        />
      </tbody>
      <tfoot>
        <tr>
          <td>合计:</td>
          <td colspan="5">
            <sum-all :goodList="goodList"/>
          </td>
        </tr>
      </tfoot>
    </table>
  </div>
</template>

<script>
import GoodInfo from './components/GoodInfo.vue'
import SumAll from './components/SumAll.vue'
export default {
  components: {
    [GoodInfo.name]:GoodInfo,
    SumAll,
  },
  data() {
    return {
      goodList: [
        {
          name: '诸葛亮',
          price: 1000,
          num: 1,
          checked: false,
        },
        {
          name: '蔡文姬',
          price: 1500,
          num: 1,
          checked: false,
        },
        {
          name: '妲己',
          price: 2000,
          num: 1,
          checked: false,
        },
        {
          name: '鲁班',
          price: 2200,
          num: 1,
          checked: false,
        },
      ],
    }
  },
  methods: {
    minus(i) {
      this.goodList[i].num===0?0:this.goodList[i].num--
    },
    add(e) {
      this.goodList[e].num++
    },
    del(i) {
      this.goodList = this.goodList.filter((obj, index) => index != i)
    },
    chec(c,i){
      console.log(c);
      this.goodList[i].checked=c
    }
  },
  computed: {
    isAll: {
      get() {
        return this.goodList.every((i) => i.checked === true)
      },
      set(val) {
        this.goodList.forEach((i) => i.checked = val)
      },
    },
  },
}
</script>

<style></style>
